ex3005.m

the file contain many matlab signal source code and many example .

x=[3,11,7,0,-1,4,2];nx=[-3:3];
[y,ny]=sigshift(x,nx,2);
w=randn(1,length(y));nw=ny;
[y,ny]=sigadd(y,ny,w,nw);
[x,nx]=sigfold(x,nx);
[rxy,nrxy]=conv_m(y,ny,x,nx);
stem(nrxy,rxy)
axis([-4,8,-50,250]);